①相得益____;意思:____
②重峦叠____;意思:____
图中所示的光现象中,由于光的折射形成的是( )
-How long does it take your father ______ to work every day?
- About half an hour.
用所给单词的适当形式填空: I like riding____(bike).
如图所示,将丝瓜茎靠近基部处切断,可发现“水”会从切面处不断缓缓地向外冒,并可持续一段时间.这段时间内( )